Algebra and Trigonometry

Mid-Chapter Quizzes help you assess your students' understanding of the concepts studied earlier in the chapter. The answers for all exercises in the Mid-Chapter Quizzes are provided in the Answers to Selected Exercises appendix, along with a reference to the section in which a particular concept was presented.

Chapter Test Preps summarize the major concepts discussed in each chapter. These Test Preps help your students prepare for a chapter test. For each concept there is a reference to a worked example illustrating the concept and at least one exercise in the Chapter Review Exercise Set relating to that concept.

Visualize the Solution, available with both algebraic and graphical solutions when appropriate, are provided to help you visualize the mathematics of the example and to create a link between the algebraic and visual components of a solution.

"Exploring Concepts with Technology" feature appears after the last section in each chapter and provides you the option to use calculators or computers to solve computationally difficult problems. In addition, students are challenged to think about pitfalls that can be produced when using technology to solve mathematical problems.

"Integrating Technology" boxes show how technology can be used to illustrate concepts and solve many mathematical problems. Examples and exercises that require a calculator or a computer to find a solution are identified by the graphing calculator icon.

Modeling sections and exercises rely on the use of a graphing calculator or a computer. These optional sections and exercises introduce the idea of a mathematical model and help you see the relevance of mathematical concepts.

Chapter Review Exercise Sets and Chapter Tests at the end of each chapter are designed to provide you with another opportunity to assess your students' understanding of the concepts presented in a chapter. The answers for all exercises in the Chapter Review Exercise Sets and the Chapter Tests are provided in the Answers to Selected Exercises appendix, along with a reference to the section in which the concept was presented.

NEW Concept Check Exercises--Each exercise set starts with exercises that are designed to test your students' understanding of new concepts.

NEW Enrichment Exercises--Each exercise set concludes with an exercise or exercises that are designed to extend the concepts presented in the section or to provide exercises that challenge your students' problem-solving abilities.

NEW Interactive Demonstrations--New Interactive Demonstrations allow you to adjust parameters and immediately see the change produced by your adjustment. These Interactive Demonstrations run on computers and on mobile devices. Instructions for using each of the demonstrations are provided. You can access these Interactive Demonstrations by scanning a QR code, with a QR reader app, or by using the web address supplied in the directions.

NEW An Interactive Technology Approach via WolframAlpha--Several Integrating Technology features show how WolframAlpha can be used to perform computations, solve equations, graph functions, and find regression functions. WolframAlpha runs on computers and mobile devices. WolframAlpha often provides an alternative to the use of a graphing calculator. WolframAlpha can be accessed by scanning a QR code or by using the address: http://www.wolframalpha.com.